Container and process of making same



June 14, 1932. K. 'rsucHlYA CONTAINER AND PRC ESS 0F MAKING SAME Filed Nov. 29

INVENTOR.

ATTORNEY Patented June 14, 1932 STATES UNIE KONOSUKE TSUCHIYA, F SA'USALITO, CALIFORNIA CONTAINER AND PROCESS OF "MIAKIIII'G SAME Application filed November 29,1930. Serial No. 499,024.

This invention relates'to containers andk process for making same, and relates more particularly to bottles generally of the type described in my United States Letters Patent No. 1,776,458, dated september 23, 1930,

liquid container, on which application for reissue patent was filed by me on November 8, 1930, Serial No. 494,437, whichrare made j of fiber board or chip board and usually treated with a water prooiing substance, such as parafiin. i'

This type of container is especially useful in the dairy industry, wherein the invention may take the form of a bottle, but the inven- 5 tion may be used in numerous other types of containers, although the description herein is, for concrete exemplification of one form of the invention, described in respect of bottles for use in the dairy industry.

Objects of the invention are to provide a container having a bottom which may be inserted in or removed from the container body, to provide a bottom closure which by inherent resilience and by a crowned top will increase T the tightness of .sealing by the weight of bottle contents; toprovide a container which has a tight seal between such a bottom and the container wall; to provide a combination ofa container and a bottom, both of whichmay U respectively be closely nested for shipment,

and provide reinforcement substantially throughouttheir entire surfaces, so as to avoid inj urywhich would prevent them from forming perfectly fitting parts when associated together; to provide a container in which both bottom and body may be shipped in nested form by the manufacturer, and which may be operatively associated by the pur- Chaser by a simple operation, so as to form a l tight grooved seal between bottom and body;

and to provide' a process whereby. the ,foregoing objects may be accomplished.

ln my above mentioned co-,pending application, I have shown a container in which an i5 inwardly opening groove was formed in a body adjacent its lower edge, and a comple- V'mentary portion was formed in a crowned and skirted bottom closure, and when the bottom closure was manually or mechanically placed in the bottom opening of the container, the complementary portion of the bottom found a seat in the inwardly opening groove. I am also aware of prior patents which disclose various types of containersm having bottoms which may be inserted in the container, some of them providing flat discs engaging a groove, others providing fiat slirted discs and others providing crowned discs Vwithout skirt or bodyy groove. None,V

of these patents describe or illustrate the dep vice of this invention, nor accomplish its purpose, nor Vare they adaptable to the proc- Aess described and claimed herein.l An object therefore is to simplfy the structure of such containers, provide for nesting of all parts u and thereby the protection of edges from mutilation in shipment, and provide the partsv so that they may be operatively assembled by a user after receipt of` the separate parts, so as to form acontainer leak-proof to the same extent as though the parts were assembled by groove engagement at the factory.

With the above mentioned and other objects in view, Athe invention consists in the novel construction andV combination of parts hereinafter described, illustrated in the accompanyin g drawing and ypointed out in the claims hereto appen'dedg'it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims may be vresorted to without departing from the spirit or sacricing any of the advantages of the invention.

To more clearly comprehend the invention, reference is directed to the accompanying "B5 drawing, whereiny Fig. 1 is a vertical transverse section of a series of nested container bodiesk with* a spaced top and a spaced bottom closure.

Fig. 2 is a broken View of a vertical transverse sectioned top portion of a container body, showing a well known disc cap.

Fig. 3 is a vertical transverse section of a container bodyshowing top and bottom in place and grooved `with the body.`

Fig. '4 is a side elevation of bottom closure prior to insertion and crimping of engaging interengaging grooves between body wall and skirted closure.

Fig. 6 is a vertical transverse section of a modification of Fig. 3, showing an inwardly turned interengaging groove between body Wall and skirted closure.

Fig. 7 is a plan view ofmodication of top plane of closure jmember,,showing1 radial frooves instead of the crowned plane of lig. l.

Fig. 8 is a planviewofeanoth-ertmodification of top plane of closure member, showing concentric circular grooves in-place of the crowned plane of Figui Referring' to the drawing, wherein like characters of referencedesignate corresponding V`parts, A indicates;` gen erally .-a; tubular bodyy having side-.walls 1, wh-i,ch arel preferably, madeof .ber board or what is known in the trade as chip beard, .whichunaterial has. suicient rigidity .to Y normally hold its formed.shape, but which isfsl-ightly;flexible', and,- slightly deformable forpurposes*hereafter set forth. rEhebodyfmayY assume any suitable tubularforn1,lotit'since the dairy industry pre-,fers abottlein'whichf cream .may Y.risefto l the top ofy milkfcon-tents, it is preferred that the bodyfgenerally follow in principlef the lines .ofi the l ordinaryI dairy Amilk bottleandlhave therefore' illustrated a containery body f outwardly Haring fromf topy to bottom, formi-ng substantially a truncated tubular. i conical shape, 'which 1 nest?` in a well known manner,,as shown in'fllligg l.

'rllhe bottle as originally fermedis provid- .edwitlr an open top -Qland an vopen bottom 3. The top 2 .is l closed byoa suitable closure means, 4'and' thisy may. assume. the v*form '-.of the Iwell -knowngiat .discfh which `is made of .properwsize tosnugl-y lit the face'ofra shoul- .der 5- on the inner: face .ofi the-1 .bottle neckL recessedfrom the. top opening. This form of closure `is `old and requires .a 'fonming-.ofg the bottlel neck toreceiveit, and il; doanotpclaim ganythinglnew: therein. The bottle top may lalsobe'closed with the -sametype .of closure` .member which is herein- "describedamore; fully relative to the bottom"closuremember.

A bottom` Closure member=.6 circular in plan, islprovided whichrcomprisesaadisc 7, having its top plane providedfwvith:greater surface areathan the @geometric plane in which it liesand preferably crowned from edge toedge, as .ati S, and; having-a 'skirt `9 formed integrally therewith-:and 4:depending from the peripheralf edge-'of thedisc. The disc is preferably .made yof heavy `weight manila er,so1netimes called stocker cardboard,V butt lin any eventi .tor have Y a: suflicient degree of resilience and-:flexibility to'rebonnd against the'walls of the container when inserted therein,- =due to pressure of the crowned plane portion 8 of the disc 7,5,whic-h `seeks its pre-formed .shape and presses `the'side walls or skirted portmn)` radially outwardly.

lt will be noted that in the preferred form, the disc 7 is similar in diameter to the inner diameter of the body l at that point of the body removed from the peripheral bottom body edge approximately the distance of the vertical height of the skirt of the bottom closure. rlhis is so .that when the .bottom closure @has beenrpressed into the open bottom 3 to the depth of the skirt 9, the disc 7 will snugly "fit the side walls of the body, and also for the forms to a `dimeter greater than theperipheral edge of the bottom opening 3 .ofi thebody `l', .preferably about onefsixteenthof an inch,

so that there will be sufficient frictional con-Y tact between the inner face of thebody wall -and thefouter face of theskirt, .toprovide a snug lit for the-temporary' holding ofthe closure in place. This-excess: of' diameter, is

" absorbedY by the `flexibility of the ,material of f the .closuremember ,whenv .placed within the body, under pressure. .lt is self-evidentthat #in manufacturing the closures. thel skirt' portion would be made to generally correspond with the form of the body .atl-its o penend.` portion, but, my invention contemplates the improvement of so .forming .the A-bottom closure that it will closelynest for shipment; will erferty a frictional pressure Hagainstthe inner body walls by reason of a depending;

skirt whichA receivesradial resilience from a crowned plane of thebottom closure, and

4.which when an interengaging groove is .formed m the, skirt and bodywallafter the closurehas been inserted in the bodyepeninc will allow forradial expansion of the skirt and plane of the closure to perm-itformation of the groove without fracture of :the closure member; at the same timemaintaining .the closure member in spaced relation to the transverse plane of the bottomf edge Aofthe container, and it. the combination .of these. improvements wherein my .invention lies.

VVhenwtlae bottom closuremember 6 has been placed within the bottom opening 3. so that the innerbody wall and'theskirt Wall are in frictional Contact, one ,or more interengaging grooves l0 are formedxsimultaneously in. and circumferential ofthe two centaeting walls. The advantageof forming the grooves after the .placement ofthe closure member is that no matter how carefully the body members and closure members-are madel` if the grooves are placed therein independently beforeassembly, they .willnot always fit CTI to form a leak-proof joint. This is sometimes caused by lack of mathematical precision in forming dies, sometimes by atmospheric conditions of dampness or dryness, sometimes because (with the grooves preformed) the respective partsdo not nest perfectly in reinforced contact and the grooves or edges become deformed in shipment or in handling. The forming of the groove after juxtapositioning of the body and closure may be accomplished by any suitable die and preferably by suitably shaped complementary convex and concave die wheels on any suitable revolving turret.

It is to be understood that any suitable material may be employed for forming the container body and closure member, and that if a porous paper stock is used, and the conf tainer is to be used for liquid, the stack should be treated with a watereprooling substance,such as paraiiin which is well known in the art. l

The top opening 2 of the container may be closed similarly with the bottom opening, but if the. container is formed as a tubular truncated cone throughout its length, the top closure 11 is provided with a plane 12 which is' of a diameter substantially equal to the diameter of the upper opening 2, which causes the upper closure 11 to be readily seated within the upper conical portion of the body and temporarily maintained thereat by the radially inward pressure of the skirt 13 by the container walls, as indicated by dotted lines Fig. 1, and as shown in Fig. '2. When the groove 14 is simultaneously formed in the juxtaposed closure and body wall, the resilient expansibility of the plane 12 will permit the skirt 13 to be drawn into the groove of the body without fracture and forming a tight leak-proof joint' similarly as with the bottom closure above described.

The simultaneously made grooves 10 and 14 may be formed radially outward as in Fig. 3 or radially inward as in Fig. 6*, and may be one or more in number as desired.

1n Fig. 7 and Fig. 8 are shown, in plan, modifications of the plane 8 of the closure members, in Fig. 'l' consisting of radial grooves which expand or flatten concentrically, and in Fig. 8 concentric grooves .which expand or flatten radially, to provide a resiliency and expansibility to the skirt when the groove is formed in the skirt of the closure member. l Having thus described my invention, what Y Iclaim and desire to secure the Letters VPating an interengaging` groove simultaneously in the said skirt and said container wall.

2. The method of manufacturing a container, consisting of the steps of forming a tubular open-ended body, and separately forming an arcuately crowned saucer-like 'closure member so that the radially outward peripheral portion of the Vclosure member forms a skirt depending radially outward from the arcuately crowned portion thereof, assembling in overlying planes the skirt and the open-ended portion of the tubular body'and thereafter forming an interengaging groove simultaneously in said skirt and the tubular body.

3. Themethod of manufacturing a container, consisting of the steps of forming a tubular open-ended body and separately forming a closure member with a top plane having greater surface area than the geometric plane in which it lies and a skirt flared radially outward and depending from the periphery of the top plane, assembling in overlying planes the skirt and the open-ended portion of the tubular body, and thereafter forming an interengaging groove simultaneously in said skirt and the tubular body.

1. A device of the character described, comprisinga tubular body having an open end, and a closure member of flexible material adapted to lie within said open end, said closure member having a top plane of greater surface area than the area of the geometric fplane in which it lies and having a skirt depending and extending radially outward from the peripheral portion of said topv plane, said body and said skirt having provided therein interengaging grooves.

In testimony whereof I have affixed my signature. f

KONOSUKE TSUCHIYA. 

